Pouring molten aluminum into a seashell to make a cast of the shell cavity. The shell is sealed with wax first. Then it's embedded with plaster to keep the aluminum from spilling out in case the shell cracks from the heat of the aluminum.
Pouring molten aluminum into a seashell to make a cast of the shell cavity. The shell is sealed with wax first. Then it's embedded with plaster to keep the aluminum from spilling out in case the shell cracks from the heat of the aluminum.
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